The case of the abnormal duodenum.

Intermittent epigastric pain, partially relieved by food, was the reason for examining 
the upper gastrointestinal tract in a 30-year-old man. The second portion 
of the duodenum was strikingly abnormal. The patient had a history 
of daily, multiple loose stools since birth. At age 12 a 
diagnosis of small bowel malabsorption due to fibrocystic disease of the 
pancreas was established. In view of this history, the duodenal changes 
were considered to be a manifestation of fibrocystic disease of the 
pancreas. At the present time the cause of these duodenal abnormalities 
is unknown. 